Mechanics

LOUD ENGINE NOISE DURRING ACCELERATION AND FREE REV

Chevrolet Impala

My dad has a 2002 Chevy Impala with the 3.4L engine and has 66100. When we start the engine it will idle fine but once we try to accelerate it makes a loud noise coming from the tube going to the air filter. We have changed the fuel filter, plugs, wires, air filter. I took it to the dealership and they said that it coul've been the catylitic converter so I changed that too and no help. Now the chevy dealership has no clue what is wrong the engine isn't giving out any codes to help diagnose. PLEASE HELP!
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Roughnutz03
February 11, 2007.



It it a whistling noise?

Sorry to hear about the NUTZ, a little moisturing lotion might help that.


http://www.2carpros.com/forum/automotive_pictures/30961_shocked1_1.jpg


No its not a whisle it is more like aaa. Maybe a woop sound but repeatidly

Tiny
Roughnutz03
Feb 13, 2007.